The hospital's human resources department called to tell me to collect a medical subsidy for an employee's child. I frowned. My daughter and I had lived abroad for years, and she was perfectly healthy. The caller sounded surprised. “It's for your son, Mr. Gu Niancheng. He applied for it.” “Gu Niancheng? My husband? Where did he get a son?” I called my husband, a renowned doctor. His voice was relaxed on the other end. “They must have made a mistake. Don't overthink it, honey.” But after I hung up, anxiety gripped me. I immediately bought a ticket home.